Well, let's see.....
They could do away with BS fees like submission forms, graders notes, etc.
They could make the tiers less expensive.
They could make membership free.
They could make their submission process easier.
They could put graders notes on the back of the label.
They could improve their Quality Control.
They could be more engaging to the people that buy their product.
They could actually get books back to people in their stated TATs, or be open, transparent, and honest when things go wrong.
They could pay for return shipping on any defective slabs and offer "heavy discounts" on current and future submissions.
They could actually participate in the promotion of this great hobby, like say, by attending the High Grade Collectors' Meeting in Atlanta Sept. 28th and speaking to their customers.
Oh, there's much more, but we don't want to overwhelm CGC too much right away. Let's see how long it takes them to get started on these suggestions. Maybe they can be proactive and get it done before someone else comes along and does it.